android.app.Notification

public Notification(int icon,
                       CharSequence tickerText,
                       long when)

Deprecated. Use Notification.Builder instead.------>使用Notification.Builder（）
Constructs a Notification object with the information needed to have a status bar icon without the standard expanded view.

 Notification noti = new Notification.Builder(mContext)
         .setContentTitle("New mail from " + sender.toString())
         .setContentText(subject)
         .setSmallIcon(R.drawable.new_mail)
         .setLargeIcon(aBitmap)
         .build();